Cable-traction wheel.



No. 808,068. PATENTED DEC. 26; 1905. T. ALEXANDER.

CABLE TRACTION WHEEL. APPLICATION FILED MAR.25.1905.

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Specification of Letters Patent.

Patented Dec. 26, 1905.

Application filed March 25, 1905. Serial No. 252,077.

To all whom, it may concern:

Be it known that I, TONY ALEXANDER, a citizen of the United States, residing at Brookhaven, in the countyof Lincoln and State of Mississippi, have invented certain new and useful Improvements in Cable Traction Wheels, of which the following is a specification.

This invention relates to cable-haulage, and more particularly to the cable-driver, the purpose being to prevent slipping of the cable and to obviate wrapping of the same around the driver.

The invention also aims to devise a novel form of driver which will admit of repairs being readily effected in the event of any of its cogs becoming disabled, worn, or otherwise unfittedvfor further effective work.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and accompanying drawings, in Which- Figure 1 is a side view of a cable-driver embodying the invention. Fig. 2 is an edge view thereof, the dotted lines showing the tortuous path of the cable. Fig. 3 is a detail perspective view of a portion of the rim of the driver on a larger scale.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The driver is in the form of a wheel and may be of any construction, depending upon its size and weight, and, as shown, comprises a hub, spoke, and rim, the latter being provided at regular intervals in its circumferential length with transverse projections l of wedge form in cross-section, so as to provide interspaces of corresponding shape to securely and firmly retain cogs 2 in place. The projections 1 are preferably an integral part of the rim, and the adjacent ones incline in opposite directions to give to the interspaces a wedge form crosswise of the rim, into Which the cogs .2 are forced and are held both by a longitudinal and a transverse Wedge action. The cogs 2 are of like formation and are of wedge shape intransverse section and in the direction of their length and are of a size to snugly fit the longitudinally and transversely wedgeshaped interspaces when forced home therein with their ends flush with opposite sides of the rim. The transverse notch 3 is formed in each cog nearer to the larger end and forms a seat for reception of the cable 4:. The outer portion of the Wall of the notch adjacent to the smaller end of the cogis beveled, as shown at 5, to assistin directing the cable into notch 3 in the operation of the driver. The cogs 2 may be of any material and are slipped into their seats, formed between the projections 1, by an endwise movement and are held in place by a wedging action in the manner stated. The notches 3 of the cogs are located alternately on opposite sides of a medial plane parallel with. the sides of the driver, as indicated most clearly in Fig. 2, to oppositely defiect the cable 4 and cause it to assume a tortuous position, which results in obviating any possible slipping, especially when the cable is under tension, and wholly obviating the necessity of wrapping the cable around the driver, as generally practiced. It is noticed that the notches 3 are nearer the larger ends of the wedge-shaped cogs. Hence the lateral stress exerted by the cable tends to force the cogs more securely in their seats upon the rim, with the result that they bind more securely.

To guard against possible displacement of the cogs, retainers 6 are located upon opposite sides of the driver and secured to the axle 7 and are provided in their edges with threaded openings to receive pins 8, which bear against opposite ends of the cogs and prevent any longitudinal movement thereof. The retainers 6 may consist of plates or like means secured to the axle 7 and of a diameter not exceeding the diameter of the rim of the driver, so as not to project beyond the plane of the seats provided for the cogs. After the cogs have been driven or otherwise forced home in their seats and the pins 8 are placed in position the cogs cannot become accidentally displaced; but should it be required to replace a displaced cog the pin in line therewith and at the larger end is removed from the retainer 6 and the cog driven out and a new one placed in position and the pin 8 replaced.

It will be noticed that one or more cogs may be replaced without removing the driver from its axle or necessitating displacement of the cable, it being necessary only to turn the driver to bring the displaced cog to a position so as to clear the cable, when the substitution may be made.

Having thus described the invention, What is claimed asnew is* 1. A cable-traction wheel provided with periphery with seats, and cogs fitted into said seats and provided with notches arranged out of line to deflect the cable and cause it to assume a tortuous position to prevent slipping.

4. A cable-traction driver provided in its periphery with wedge-shaped seats, and cogs of corresponding wedge form fitted into said seats and provided with notches arranged out of line to cause the cable to assume a tortuous position to obviate slipping.

5. A cable-traction driver provided with projectionsaround its periphery, having their opposing faces outwardly and longitudinally converged to form longitudinally and transversely wedge-shaped seats, and cogs of corresponding wedge form fitted in said seats and provided with notches arranged out of alinement.

6. In a cable-traction driver, the combination of detachable cogs provided with notches arranged out of line, retainers at opposite sides of the driver, and pins fitted into said retainers and adapted to prevent casual displacement of the cogs.

In testimony whereof I afiix my signature in presence of two witnesses.

TONY -ALEXANDER.

Witnesses:

A. B. LAOEY, L. H. JoHNs'roN. 

